CN205489610U - An active compensation energy-saving device - Google Patents

Abstract

The utility model provides an active compensation economizer, include: the power supply comprises a pulse control circuit IC, a power output circuit and a power supply circuit, wherein the pulse control circuit IC is connected with the power output circuit and the power supply circuit, and the power supply circuit is connected with the power output circuit; the utility model discloses well power output circuit's C1 work in the state of interchange, voltage is half of power, step up and obtain the compensation through the power, C1 half-wave absorbs the power energy when only charging, the half-wave then discharges and provides extra electric current to M in addition, so the electric current for M is the full wave, power supply circuit is the half-wave to power output circuit's maximum power supply only, it is half reducible to mean battery powered, therefore the discharge capacity of extension battery, electric capacity C1 can restrict M's maximum current and provide the protection.

Description

An active compensation energy-saving device

technical field

The utility model relates to the technical field of electric vehicle battery management, in particular to an active compensation energy-saving device.

Background technique

Lithium battery is currently the battery with the highest specific energy among all storage batteries. Compared with other batteries, it is light in weight, small in size, and has an adjustable working voltage range. The lithium battery with high specific energy makes the number of single lithium batteries in series required for high-voltage operation Less than other batteries.

For electric vehicles, the efficiency of environmental protection and energy saving is high. Batteries are the energy source of electric vehicles. Only when batteries are durable, stable and safe can the overall performance of electric vehicles be greatly improved. To maintain the normal performance of lithium batteries Capacity and high efficiency require a more sophisticated and highly intelligent charging and discharging system to ensure the service life of the lithium battery, otherwise it will cause irreversible damage to the lithium battery.

However, due to the limitation of battery capacity, the mileage of electric vehicles is limited without recharging. If a battery device with a larger capacity is used, it will be expensive due to its large size and high cost for electric vehicles, which limits the use of electric vehicles. popularization and development.

Utility model content

Aiming at the technical problems above, the utility model proposes an active compensation and energy-saving device, which prolongs battery life and achieves electric energy compensation and energy-saving effects.

The technical scheme of the utility model is: an active compensation energy-saving device, comprising: a pulse control circuit IC, a power output circuit and a power supply circuit, wherein the pulse control circuit IC is connected with the power output circuit and the power supply circuit, and the power supply circuit and the power output circuit connect;

The power output circuit includes a triode T1, a first field effect transistor F1, a third field effect transistor F3, a motor M, a first diode D1, a second diode D2 and a capacitor C1; wherein the output of the pulse control circuit IC Terminal connected to the base of the first transistor T1, the gate of the third field effect transistor F3 is connected to the output terminal of the pulse control circuit IC through the resistor R3, the collector of the first transistor T1 is connected to the first field through the resistor R2 The gate of the effect transistor F1 is connected, the drain of the first field effect transistor F1 is connected to the output terminal of the motor M, the source of the first field effect transistor F1 and the drain of the third field effect transistor F3 are connected to the capacitor C1 Negative connection, the output terminal of the motor M is connected to the positive pole of the second diode D2, the negative pole of the second diode D2 is connected to the positive pole of the capacitor C1 and the positive pole of the first diode D1, and the first diode D1 The negative pole of is connected to the input end of the motor M;

The power supply circuit includes a battery B, a capacitor C2, a third diode D3, a second field effect transistor F2, a fourth field effect transistor F4 and a second triode T2; wherein the positive input terminal of the battery B is connected to the motor M The input terminal is connected, the anode of the third diode D3 is connected to the source of the third field effect transistor F3, the drain of the second field effect transistor F2 is connected to the positive electrode of the battery B, and the gate of the second field effect transistor F2 is passed through The resistor R5 is connected to the collector of the second transistor T2, and the collector of the second transistor T2 is connected to the positive electrode of the battery B through the resistor R4; the base of the second transistor T2 is connected to the pulse control circuit IC through the resistor R7 The output terminal of the second field effect transistor F2 is connected to the drain of the fourth field effect transistor F4, and the gate of the fourth field effect transistor F4 is connected to the output terminal of the pulse control circuit IC through a resistor R6;

The cathode of the third diode D3, the source of the fourth field effect transistor F4, the emitter of the second transistor T2 and the emitter of the first transistor T1 are connected to the cathode of the battery B.

Further, the pulse control circuit IC includes a pulse generator and a pulse width controller.

Further, the first field effect transistor F1, the second field effect transistor F2, the third field effect transistor F3 and the fourth field effect transistor F4 are N-channel enhancement MOS field effect transistors.

The beneficial effects of the utility model:

Capacitor C1 of the power output circuit works in the AC state, and the voltage is half of the power supply, which is compensated by boosting the power supply. Capacitor C1 only absorbs the energy of the power supply in half-wave during charging, and discharges in the other half-wave to provide additional current to the motor M, so The current to the motor M is full-wave, and the maximum power supply from the power supply circuit to the power output circuit is only half-wave, which means that the battery power supply can be reduced by half, thus prolonging the discharge capacity of the battery. Capacitor C1 can limit the maximum current of the motor M and provide protection.

Description of drawings

Fig. 1 is a structure diagram of an active compensation energy-saving device proposed by the utility model.

detailed description

Referring to Fig. 1, it is a structural diagram of an active compensation energy-saving device proposed by the utility model.

As shown in Figure 1, an active compensation energy-saving device includes: a pulse control circuit IC, a power output circuit and a power supply circuit, wherein the pulse control circuit IC is connected to the power output circuit and the power supply circuit, and the power supply circuit is connected to the power output circuit;

The power output circuit includes a triode T1, a first field effect transistor F1, a third field effect transistor F3, a motor M, a first diode D1, a second diode D2 and a capacitor C1; wherein the output of the pulse control circuit IC Terminal connected to the base of the first transistor T1, the gate of the third field effect transistor F3 is connected to the output terminal of the pulse control circuit IC through the resistor R3, the collector of the first transistor T1 is connected to the first field through the resistor R2 The gate of the effect transistor F1 is connected, the drain of the first field effect transistor F1 is connected to the output terminal of the motor M, the source of the first field effect transistor F1 and the drain of the third field effect transistor F3 are connected to the capacitor C1 Negative connection, the output terminal of the motor M is connected to the positive pole of the second diode D2, the negative pole of the second diode D2 is connected to the positive pole of the capacitor C1 and the positive pole of the first diode D1, and the first diode D1 The negative pole of is connected to the input end of the motor M;

The power supply circuit includes a battery B, a capacitor C2, a third diode D3, a second field effect transistor F2, a fourth field effect transistor F4 and a second triode T2; wherein the positive input terminal of the battery B is connected to the motor M The input terminal is connected, the anode of the third diode D3 is connected to the source of the third field effect transistor F3, the drain of the second field effect transistor F2 is connected to the positive electrode of the battery B, and the gate of the second field effect transistor F2 is passed through The resistor R5 is connected to the collector of the second transistor T2, and the collector of the second transistor T2 is connected to the positive electrode of the battery B through the resistor R4; the base of the second transistor T2 is connected to the pulse control circuit IC through the resistor R7 The output terminal of the second field effect transistor F2 is connected to the drain of the fourth field effect transistor F4, and the gate of the fourth field effect transistor F4 is connected to the output terminal of the pulse control circuit IC through a resistor R6;

The cathode of the third diode D3, the source of the fourth field effect transistor F4, the emitter of the second transistor T2 and the emitter of the first transistor T1 are connected to the cathode of the battery B.

Further, the pulse control circuit IC includes a pulse generator and a pulse width controller.

Further, the first field effect transistor F1, the second field effect transistor F2, the third field effect transistor F3 and the fourth field effect transistor F4 are N-channel enhancement MOS field effect transistors.

When the pulse control circuit IC output is low level "O", the first field effect transistor F1 is turned on, the third field effect transistor F3 is turned off, and the power output circuit is in a static state. At the same time, the second field effect transistor F2 is turned on, and the third field effect transistor F3 is turned on The four field effect transistors F4 and the second transistor T2 are turned off, and the battery B forms a charging circuit through the second field effect transistor F2, the capacitor C2, and the third diode D3, and is in a static state when the capacitor C2 is charged to saturation;

When the output of the pulse control circuit IC is high level "1", the first field effect transistor F2 is turned off, the fourth field effect transistor F4 and the second triode T2 are turned on, and the fourth field effect transistor F4 connects XY two points The capacitor C2 is connected in series with the battery B to double the voltage, and output to the power output circuit. At the same time, the first field effect transistor F1 of the power output circuit is turned off and the third field effect transistor F3 is turned on. The current flows through the motor M and the second diode The tube D2, the capacitor C1, and the third field effect tube F3 complete the circuit, and the capacitor C1 obtains the charging motor M to perform work at the same time.

When the pulse control circuit IC output returns to low level "O", the third field effect transistor F3 of the power output circuit is turned off and the first field effect transistor F1 is turned on, and the capacitor C1 passes through the first diode D1, the first field effect transistor The tube F1 and the motor M are discharged, and continue to flow through the second diode D2 and the first diode D1. At the same time, the fourth field effect transistor F4 and the second transistor T2 of the power circuit are turned off, and the second field effect transistor F2 conduction. The battery B charges the capacitor C2 through the second field effect transistor F2 and the third diode D3 for another cycle.

Capacitor C1 of the power output circuit works in the AC state, and the voltage is half of the power supply, which is compensated by boosting the power supply. Capacitor C1 only absorbs the energy of the power supply in half-wave during charging, and discharges in the other half-wave to provide additional current to the motor M, so The current to the motor M is full-wave, and the maximum power supply from the power supply circuit to the power output circuit is only half-wave, which means that the battery power supply can be reduced by half, thus prolonging the discharge capacity of the battery. Another function of capacitor C1 can limit the maximum current of M And provide protection.

The utility model has been introduced in detail above, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made without departing from the purpose of the utility model within the scope of knowledge of those skilled in the art. Many other changes and modifications can be made without departing from the spirit and scope of the present invention. It should be understood that the invention is not limited to specific embodiments, and the scope of the invention is defined by the appended claims.

Claims (3)

1. An active compensation energy-saving device is characterized in that, comprising: a pulse control circuit IC, a power output circuit and a power supply circuit, wherein the pulse control circuit IC is connected with the power output circuit and the power supply circuit, and the power supply circuit is connected with the power output circuit; The power output circuit includes a triode T1, a first field effect transistor F1, a third field effect transistor F3, a motor M, a first diode D1, a second diode D2 and a capacitor C1; wherein the output of the pulse control circuit IC Terminal connected to the base of the first transistor T1, the gate of the third field effect transistor F3 is connected to the output terminal of the pulse control circuit IC through the resistor R3, the collector of the first transistor T1 is connected to the first field through the resistor R2 The gate of the effect transistor F1 is connected, the drain of the first field effect transistor F1 is connected to the output terminal of the motor M, the source of the first field effect transistor F1 and the drain of the third field effect transistor F3 are connected to the capacitor C1 Negative connection, the output terminal of the motor M is connected to the positive pole of the second diode D2, the negative pole of the second diode D2 is connected to the positive pole of the capacitor C1 and the positive pole of the first diode D1, and the first diode D1 The negative pole of is connected to the input end of the motor M; The power supply circuit includes a battery B, a capacitor C2, a third diode D3, a second field effect transistor F2, a fourth field effect transistor F4 and a second triode T2; wherein the positive input terminal of the battery B is connected to the motor M The input terminal is connected, the anode of the third diode D3 is connected to the source of the third field effect transistor F3, the drain of the second field effect transistor F2 is connected to the positive electrode of the battery B, and the gate of the second field effect transistor F2 is passed through The resistor R5 is connected to the collector of the second transistor T2, and the collector of the second transistor T2 is connected to the positive electrode of the battery B through the resistor R4; the base of the second transistor T2 is connected to the pulse control circuit IC through the resistor R7 The output terminal of the second field effect transistor F2 is connected to the drain of the fourth field effect transistor F4, and the gate of the fourth field effect transistor F4 is connected to the output terminal of the pulse control circuit IC through a resistor R6; The cathode of the third diode D3, the source of the fourth field effect transistor F4, the emitter of the second transistor T2 and the emitter of the first transistor T1 are connected to the cathode of the battery B. 2. An active compensation energy-saving device according to claim 1, wherein the pulse control circuit IC includes a pulse generator and a pulse width controller. 3. An active compensation energy-saving device according to claim 1, characterized in that the first field effect transistor F1, the second field effect transistor F2, the third field effect transistor F3 and the fourth field effect transistor F4 N-channel enhancement mode MOS field effect transistor is adopted.